♻️ Extract GameGraphics struct
_
parent
1560b2d3cd
commit
1a42b60f71
|
|
@ -149,26 +149,23 @@ struct RenderableArrow {
|
|||
inv_model_mat: Mat4,
|
||||
}
|
||||
|
||||
fn main () {
|
||||
let sdl_context = sdl2::init ().unwrap ();
|
||||
let video_subsystem = sdl_context.video ().unwrap ();
|
||||
struct GameGraphics {
|
||||
shader_diffuse: ShaderClosure,
|
||||
shader_shadow: ShaderClosure,
|
||||
|
||||
let window = video_subsystem.window ("OpenGL? In my Rust?", 1280, 720)
|
||||
.position_centered ()
|
||||
.opengl ()
|
||||
.build ()
|
||||
.unwrap ();
|
||||
mesh_pumpkin: RenderableModel,
|
||||
mesh_sky: RenderableModel,
|
||||
mesh_pitch: RenderableModel,
|
||||
mesh_arrow: RenderableModel,
|
||||
|
||||
gl::load_with (|s| {
|
||||
video_subsystem.gl_get_proc_address (s) as *const _
|
||||
});
|
||||
texture: Texture,
|
||||
|
||||
assert! (gl::ClearColor::is_loaded ());
|
||||
|
||||
let gl_ctx = window.gl_create_context ().unwrap ();
|
||||
|
||||
window.gl_make_current (&gl_ctx).unwrap ();
|
||||
pitch_colors: Vec <Vec3>,
|
||||
grass_index: usize,
|
||||
}
|
||||
|
||||
impl GameGraphics {
|
||||
pub fn new () -> Self {
|
||||
let uniform_names = {
|
||||
use uniforms::*;
|
||||
vec! [
|
||||
|
|
@ -202,26 +199,13 @@ fn main () {
|
|||
glezz::enable_vertex_attrib_array (attrs [NORMAL]);
|
||||
});
|
||||
|
||||
let texture = Texture::from_file ("sky.png");
|
||||
texture.bind ();
|
||||
|
||||
let mesh_pumpkin = renderable_from_iqm_file ("pumpking.iqm");
|
||||
let mesh_sky = renderable_from_iqm_file ("sky-sphere.iqm");
|
||||
let mesh_pitch = renderable_from_iqm_file ("pitch.iqm");
|
||||
let mesh_arrow = renderable_from_iqm_file ("arrow.iqm");
|
||||
|
||||
let magenta = color_from_255 ((255.0, 0.0, 255.0));
|
||||
let orange = color_from_255 ((210.0, 125.0, 44.0));
|
||||
let green = color_from_255 ((52.0, 101.0, 36.0));
|
||||
let white = color_from_255 ((255.0, 255.0, 255.0));
|
||||
let _off_white = color_from_255 ((222.0, 238.0, 214.0));
|
||||
let black = color_from_255 ((0.0, 0.0, 0.0));
|
||||
let _off_black = color_from_255 ((20.0, 12.0, 28.0));
|
||||
|
||||
let pumpkin_colors = vec! [
|
||||
orange,
|
||||
green,
|
||||
];
|
||||
let texture = Texture::from_file ("sky.png");
|
||||
texture.bind ();
|
||||
|
||||
let (pitch_colors, grass_index) = {
|
||||
let silver = (255.0, 255.0, 255.0);
|
||||
|
|
@ -262,35 +246,40 @@ fn main () {
|
|||
(colors, grass_index.unwrap ())
|
||||
};
|
||||
|
||||
glezz::enable (gl::DEPTH_TEST);
|
||||
glezz::enable (gl::TEXTURE_2D);
|
||||
Self {
|
||||
shader_diffuse,
|
||||
shader_shadow,
|
||||
|
||||
let mut time_step = TimeStep::new (60, 1000);
|
||||
let mut state = WorldState::new ();
|
||||
mesh_pumpkin,
|
||||
mesh_sky,
|
||||
mesh_pitch,
|
||||
mesh_arrow,
|
||||
|
||||
let mut event_pump = sdl_context.event_pump ().unwrap ();
|
||||
'running: loop {
|
||||
let frames_to_do = time_step.step ();
|
||||
texture,
|
||||
|
||||
let controller = ControllerState::from_sdl_keyboard (&event_pump.keyboard_state ());
|
||||
|
||||
for _ in 0..frames_to_do {
|
||||
state.step (&controller);
|
||||
}
|
||||
|
||||
let _mouse = event_pump.mouse_state ();
|
||||
|
||||
for event in event_pump.poll_iter() {
|
||||
match event {
|
||||
Event::Quit {..} |
|
||||
Event::KeyDown { keycode: Some (Keycode::Escape), .. } => {
|
||||
break 'running
|
||||
},
|
||||
_ => (),
|
||||
pitch_colors,
|
||||
grass_index,
|
||||
}
|
||||
}
|
||||
|
||||
window.gl_make_current (&gl_ctx).unwrap ();
|
||||
pub fn draw (
|
||||
&self,
|
||||
state: &WorldState,
|
||||
arrows: &[RenderableArrow]
|
||||
)
|
||||
{
|
||||
let magenta = color_from_255 ((255.0, 0.0, 255.0));
|
||||
let orange = color_from_255 ((210.0, 125.0, 44.0));
|
||||
let green = color_from_255 ((52.0, 101.0, 36.0));
|
||||
let white = color_from_255 ((255.0, 255.0, 255.0));
|
||||
let _off_white = color_from_255 ((222.0, 238.0, 214.0));
|
||||
let black = color_from_255 ((0.0, 0.0, 0.0));
|
||||
let _off_black = color_from_255 ((20.0, 12.0, 28.0));
|
||||
|
||||
let pumpkin_colors = vec! [
|
||||
orange,
|
||||
green,
|
||||
];
|
||||
|
||||
let longitude = state.azimuth.to_radians ();
|
||||
let latitude = (state.altitude - 90.0).to_radians ();
|
||||
|
|
@ -326,6 +315,198 @@ fn main () {
|
|||
|
||||
let world_model_mat = Mat4::identity ();
|
||||
|
||||
use uniforms::*;
|
||||
|
||||
glezz::enable (gl::DEPTH_TEST);
|
||||
glezz::enable (gl::TEXTURE_2D);
|
||||
|
||||
self.shader_diffuse.with (|shader_vars| {
|
||||
let unis = shader_vars.unis;
|
||||
let attrs = shader_vars.attrs;
|
||||
|
||||
// Pass 1 - Draw the world except the ground plane
|
||||
glezz::disable (gl::STENCIL_TEST);
|
||||
glezz::front_face (gl::CW);
|
||||
|
||||
let mvp = view_mat * pumpkin_model_mat;
|
||||
glezz::uniform_matrix_4fv (unis [&MVP], &mvp);
|
||||
|
||||
let inverse_pumpkin = pumpkin_model_mat.inverse ();
|
||||
|
||||
let object_space_light = make_object_space_vec (&inverse_pumpkin, &light);
|
||||
|
||||
let object_space_sky = make_object_space_vec (&inverse_pumpkin, &Vec3::from ((0.0, 0.0, 1.0)));
|
||||
|
||||
glezz::uniform_3fv (unis [&MIN_BRIGHT], &black);
|
||||
glezz::uniform_3fv (unis [&MIN_ALBEDO], &white);
|
||||
glezz::uniform_3fv (unis [&OBJECT_SPACE_LIGHT], &object_space_light);
|
||||
glezz::uniform_3fv (unis [&OBJECT_SPACE_SKY], &object_space_sky);
|
||||
|
||||
self.mesh_pumpkin.draw_all (attrs, |i| {
|
||||
glezz::uniform_3fv (unis [&ALBEDO], &pumpkin_colors [i]);
|
||||
true
|
||||
});
|
||||
|
||||
let mvp = view_mat * world_model_mat;
|
||||
glezz::uniform_matrix_4fv (unis [&MVP], &mvp);
|
||||
|
||||
self.mesh_pitch.draw_all (attrs, |i| {
|
||||
glezz::uniform_3fv (unis [&ALBEDO], &self.pitch_colors [i]);
|
||||
i != self.grass_index
|
||||
});
|
||||
|
||||
glezz::uniform_3fv (unis [&ALBEDO], &magenta);
|
||||
for arrow in arrows.iter () {
|
||||
let mvp = view_mat * arrow.model_mat;
|
||||
|
||||
glezz::uniform_matrix_4fv (unis [&MVP], &mvp);
|
||||
let object_space_light = make_object_space_vec (&arrow.inv_model_mat, &light);
|
||||
let object_space_sky = make_object_space_vec (&arrow.inv_model_mat, &Vec3::from ((0.0, 0.0, 1.0)));
|
||||
glezz::uniform_3fv (unis [&OBJECT_SPACE_LIGHT], &object_space_light);
|
||||
glezz::uniform_3fv (unis [&OBJECT_SPACE_SKY], &object_space_sky);
|
||||
|
||||
self.mesh_arrow.draw_all (attrs, |_| true);
|
||||
}
|
||||
|
||||
let draw_sky = true;
|
||||
if draw_sky {
|
||||
self.texture.bind ();
|
||||
glezz::uniform_matrix_4fv (unis [&MVP], &sky_mvp_mat);
|
||||
glezz::uniform_3fv (unis [&ALBEDO], &white);
|
||||
glezz::uniform_3fv (unis [&MIN_BRIGHT], &white);
|
||||
glezz::uniform_3fv (unis [&MIN_ALBEDO], &black);
|
||||
glezz::uniform_1i (unis [&TEXTURE], 0);
|
||||
|
||||
self.mesh_sky.draw_all (attrs, |_| true);
|
||||
}
|
||||
});
|
||||
|
||||
self.shader_shadow.with (|shader_vars| {
|
||||
let unis = shader_vars.unis;
|
||||
let attrs = shader_vars.attrs;
|
||||
|
||||
// Pass 2: Draw shadows into stencil buffer
|
||||
glezz::front_face (gl::CCW);
|
||||
glezz::enable (gl::STENCIL_TEST);
|
||||
unsafe {
|
||||
gl::StencilFunc (gl::ALWAYS, 1, 1);
|
||||
gl::StencilOp (gl::KEEP, gl::KEEP, gl::REPLACE);
|
||||
|
||||
gl::ColorMask (0, 0, 0, 0);
|
||||
gl::DepthMask (0);
|
||||
gl::StencilMask (1);
|
||||
}
|
||||
|
||||
let view_mat = view_mat * shadow_mat;
|
||||
|
||||
let mvp = view_mat * pumpkin_model_mat;
|
||||
glezz::uniform_matrix_4fv (unis [&MVP], &mvp);
|
||||
|
||||
self.mesh_pumpkin.draw_all (attrs, |_| true);
|
||||
|
||||
let mvp = view_mat * world_model_mat;
|
||||
glezz::uniform_matrix_4fv (unis [&MVP], &mvp);
|
||||
|
||||
self.mesh_pitch.draw_all (attrs, |i| i != self.grass_index);
|
||||
|
||||
for arrow in arrows.iter () {
|
||||
let mvp = view_mat * arrow.model_mat;
|
||||
|
||||
glezz::uniform_matrix_4fv (unis [&MVP], &mvp);
|
||||
self.mesh_arrow.draw_all (attrs, |_| true);
|
||||
}
|
||||
});
|
||||
|
||||
self.shader_diffuse.with (|shader_vars| {
|
||||
let unis = shader_vars.unis;
|
||||
let attrs = shader_vars.attrs;
|
||||
|
||||
// Pass 3: Draw lit ground
|
||||
unsafe {
|
||||
gl::ColorMask (255, 255, 255, 255);
|
||||
gl::DepthMask (1);
|
||||
gl::StencilFunc (gl::NOTEQUAL, 0, 1);
|
||||
gl::StencilOp (gl::KEEP, gl::KEEP, gl::KEEP);
|
||||
}
|
||||
|
||||
glezz::front_face (gl::CW);
|
||||
|
||||
let inverse_pumpkin = pumpkin_model_mat.inverse ();
|
||||
|
||||
let object_space_light = make_object_space_vec (&inverse_pumpkin, &light);
|
||||
|
||||
let object_space_sky = make_object_space_vec (&inverse_pumpkin, &Vec3::from ((0.0, 0.0, 1.0)));
|
||||
|
||||
glezz::uniform_3fv (unis [&MIN_BRIGHT], &black);
|
||||
glezz::uniform_3fv (unis [&MIN_ALBEDO], &white);
|
||||
glezz::uniform_3fv (unis [&OBJECT_SPACE_SKY], &object_space_sky);
|
||||
|
||||
let mvp = view_mat * world_model_mat;
|
||||
glezz::uniform_matrix_4fv (unis [&MVP], &mvp);
|
||||
|
||||
glezz::uniform_3fv (unis [&ALBEDO], &self.pitch_colors [self.grass_index]);
|
||||
|
||||
glezz::uniform_3fv (unis [&OBJECT_SPACE_LIGHT], &Vec3::from ((0.0, 0.0, 0.0)));
|
||||
self.mesh_pitch.draw (attrs, self.grass_index);
|
||||
|
||||
// Pass 4: Draw shadowed ground
|
||||
unsafe {
|
||||
gl::StencilFunc (gl::EQUAL, 0, 1);
|
||||
gl::StencilOp (gl::KEEP, gl::KEEP, gl::KEEP);
|
||||
}
|
||||
glezz::uniform_3fv (unis [&OBJECT_SPACE_LIGHT], &object_space_light);
|
||||
self.mesh_pitch.draw (attrs, self.grass_index);
|
||||
});
|
||||
}
|
||||
}
|
||||
|
||||
fn main () {
|
||||
let sdl_context = sdl2::init ().unwrap ();
|
||||
let video_subsystem = sdl_context.video ().unwrap ();
|
||||
|
||||
let window = video_subsystem.window ("OpenGL? In my Rust?", 1280, 720)
|
||||
.position_centered ()
|
||||
.opengl ()
|
||||
.build ()
|
||||
.unwrap ();
|
||||
|
||||
gl::load_with (|s| {
|
||||
video_subsystem.gl_get_proc_address (s) as *const _
|
||||
});
|
||||
|
||||
assert! (gl::ClearColor::is_loaded ());
|
||||
|
||||
let gl_ctx = window.gl_create_context ().unwrap ();
|
||||
|
||||
window.gl_make_current (&gl_ctx).unwrap ();
|
||||
|
||||
let mut time_step = TimeStep::new (60, 1000);
|
||||
let mut state = WorldState::new ();
|
||||
|
||||
let graphics = GameGraphics::new ();
|
||||
|
||||
let mut event_pump = sdl_context.event_pump ().unwrap ();
|
||||
'running: loop {
|
||||
let frames_to_do = time_step.step ();
|
||||
|
||||
let controller = ControllerState::from_sdl_keyboard (&event_pump.keyboard_state ());
|
||||
|
||||
for _ in 0..frames_to_do {
|
||||
state.step (&controller);
|
||||
}
|
||||
|
||||
let _mouse = event_pump.mouse_state ();
|
||||
|
||||
for event in event_pump.poll_iter() {
|
||||
match event {
|
||||
Event::Quit {..} |
|
||||
Event::KeyDown { keycode: Some (Keycode::Escape), .. } => {
|
||||
break 'running
|
||||
},
|
||||
_ => (),
|
||||
}
|
||||
}
|
||||
|
||||
let arrows = vec![
|
||||
Arrow {
|
||||
origin: (0.0, 0.0, 1.0).into (),
|
||||
|
|
@ -378,144 +559,9 @@ fn main () {
|
|||
}
|
||||
}).collect ();
|
||||
|
||||
use uniforms::*;
|
||||
window.gl_make_current (&gl_ctx).unwrap ();
|
||||
|
||||
shader_diffuse.with (|shader_vars| {
|
||||
let unis = shader_vars.unis;
|
||||
let attrs = shader_vars.attrs;
|
||||
|
||||
// Pass 1 - Draw the world except the ground plane
|
||||
glezz::disable (gl::STENCIL_TEST);
|
||||
glezz::front_face (gl::CW);
|
||||
|
||||
let mvp = view_mat * pumpkin_model_mat;
|
||||
glezz::uniform_matrix_4fv (unis [&MVP], &mvp);
|
||||
|
||||
let inverse_pumpkin = pumpkin_model_mat.inverse ();
|
||||
|
||||
let object_space_light = make_object_space_vec (&inverse_pumpkin, &light);
|
||||
|
||||
let object_space_sky = make_object_space_vec (&inverse_pumpkin, &Vec3::from ((0.0, 0.0, 1.0)));
|
||||
|
||||
glezz::uniform_3fv (unis [&MIN_BRIGHT], &black);
|
||||
glezz::uniform_3fv (unis [&MIN_ALBEDO], &white);
|
||||
glezz::uniform_3fv (unis [&OBJECT_SPACE_LIGHT], &object_space_light);
|
||||
glezz::uniform_3fv (unis [&OBJECT_SPACE_SKY], &object_space_sky);
|
||||
|
||||
mesh_pumpkin.draw_all (attrs, |i| {
|
||||
glezz::uniform_3fv (unis [&ALBEDO], &pumpkin_colors [i]);
|
||||
true
|
||||
});
|
||||
|
||||
let mvp = view_mat * world_model_mat;
|
||||
glezz::uniform_matrix_4fv (unis [&MVP], &mvp);
|
||||
|
||||
mesh_pitch.draw_all (attrs, |i| {
|
||||
glezz::uniform_3fv (unis [&ALBEDO], &pitch_colors [i]);
|
||||
i != grass_index
|
||||
});
|
||||
|
||||
glezz::uniform_3fv (unis [&ALBEDO], &magenta);
|
||||
for arrow in &renderable_arrows {
|
||||
let mvp = view_mat * arrow.model_mat;
|
||||
|
||||
glezz::uniform_matrix_4fv (unis [&MVP], &mvp);
|
||||
let object_space_light = make_object_space_vec (&arrow.inv_model_mat, &light);
|
||||
let object_space_sky = make_object_space_vec (&arrow.inv_model_mat, &Vec3::from ((0.0, 0.0, 1.0)));
|
||||
glezz::uniform_3fv (unis [&OBJECT_SPACE_LIGHT], &object_space_light);
|
||||
glezz::uniform_3fv (unis [&OBJECT_SPACE_SKY], &object_space_sky);
|
||||
|
||||
mesh_arrow.draw_all (attrs, |_| true);
|
||||
}
|
||||
|
||||
let draw_sky = true;
|
||||
if draw_sky {
|
||||
glezz::uniform_matrix_4fv (unis [&MVP], &sky_mvp_mat);
|
||||
glezz::uniform_3fv (unis [&ALBEDO], &white);
|
||||
glezz::uniform_3fv (unis [&MIN_BRIGHT], &white);
|
||||
glezz::uniform_3fv (unis [&MIN_ALBEDO], &black);
|
||||
glezz::uniform_1i (unis [&TEXTURE], 0);
|
||||
|
||||
mesh_sky.draw_all (attrs, |_| true);
|
||||
}
|
||||
});
|
||||
|
||||
shader_shadow.with (|shader_vars| {
|
||||
let unis = shader_vars.unis;
|
||||
let attrs = shader_vars.attrs;
|
||||
|
||||
// Pass 2: Draw shadows into stencil buffer
|
||||
glezz::front_face (gl::CCW);
|
||||
glezz::enable (gl::STENCIL_TEST);
|
||||
unsafe {
|
||||
gl::StencilFunc (gl::ALWAYS, 1, 1);
|
||||
gl::StencilOp (gl::KEEP, gl::KEEP, gl::REPLACE);
|
||||
|
||||
gl::ColorMask (0, 0, 0, 0);
|
||||
gl::DepthMask (0);
|
||||
gl::StencilMask (1);
|
||||
}
|
||||
|
||||
let view_mat = view_mat * shadow_mat;
|
||||
|
||||
let mvp = view_mat * pumpkin_model_mat;
|
||||
glezz::uniform_matrix_4fv (unis [&MVP], &mvp);
|
||||
|
||||
mesh_pumpkin.draw_all (attrs, |_| true);
|
||||
|
||||
let mvp = view_mat * world_model_mat;
|
||||
glezz::uniform_matrix_4fv (unis [&MVP], &mvp);
|
||||
|
||||
mesh_pitch.draw_all (attrs, |i| i != grass_index);
|
||||
|
||||
for renderable_arrow in &renderable_arrows {
|
||||
let mvp = view_mat * renderable_arrow.model_mat;
|
||||
|
||||
glezz::uniform_matrix_4fv (unis [&MVP], &mvp);
|
||||
mesh_arrow.draw_all (attrs, |_| true);
|
||||
}
|
||||
});
|
||||
|
||||
shader_diffuse.with (|shader_vars| {
|
||||
let unis = shader_vars.unis;
|
||||
let attrs = shader_vars.attrs;
|
||||
|
||||
// Pass 3: Draw lit ground
|
||||
unsafe {
|
||||
gl::ColorMask (255, 255, 255, 255);
|
||||
gl::DepthMask (1);
|
||||
gl::StencilFunc (gl::NOTEQUAL, 0, 1);
|
||||
gl::StencilOp (gl::KEEP, gl::KEEP, gl::KEEP);
|
||||
}
|
||||
|
||||
glezz::front_face (gl::CW);
|
||||
|
||||
let inverse_pumpkin = pumpkin_model_mat.inverse ();
|
||||
|
||||
let object_space_light = make_object_space_vec (&inverse_pumpkin, &light);
|
||||
|
||||
let object_space_sky = make_object_space_vec (&inverse_pumpkin, &Vec3::from ((0.0, 0.0, 1.0)));
|
||||
|
||||
glezz::uniform_3fv (unis [&MIN_BRIGHT], &black);
|
||||
glezz::uniform_3fv (unis [&MIN_ALBEDO], &white);
|
||||
glezz::uniform_3fv (unis [&OBJECT_SPACE_SKY], &object_space_sky);
|
||||
|
||||
let mvp = view_mat * world_model_mat;
|
||||
glezz::uniform_matrix_4fv (unis [&MVP], &mvp);
|
||||
|
||||
glezz::uniform_3fv (unis [&ALBEDO], &pitch_colors [grass_index]);
|
||||
|
||||
glezz::uniform_3fv (unis [&OBJECT_SPACE_LIGHT], &Vec3::from ((0.0, 0.0, 0.0)));
|
||||
mesh_pitch.draw (attrs, grass_index);
|
||||
|
||||
// Pass 4: Draw shadowed ground
|
||||
unsafe {
|
||||
gl::StencilFunc (gl::EQUAL, 0, 1);
|
||||
gl::StencilOp (gl::KEEP, gl::KEEP, gl::KEEP);
|
||||
}
|
||||
glezz::uniform_3fv (unis [&OBJECT_SPACE_LIGHT], &object_space_light);
|
||||
mesh_pitch.draw (attrs, grass_index);
|
||||
});
|
||||
graphics.draw (&state, &renderable_arrows);
|
||||
|
||||
window.gl_swap_window ();
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue